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Aviation History
1924
1924 - 0320.PDF
MAY 29, 1924 The Vickers-Saunders " Valentia " flying boat, with two'Rolls-Royce "Condor " engines. fact that they were built entirely of metal they were no heavier than similar wood aeroplanes, and a further order has now been received for similar machines, in which certain modifica tions have been made to increase the military value, but which, as regards the structural principles, are similar to the earlier types. A photograph of a Short " Springbok " is given here with, while a description of an all-metal light flying boat is given in another section. It may be mentioned that this firm has now under construc tion a duralumin hull for an F.5 flying boat. This hull is of entirely novel construction, and is the result of many tests and experiments to ascertain the best methods of obtaining watertightness. It is expected that the weight of this hull will be no more, and possibly less, than that of an ordinary wooden hull of the same volume. The duralumin hull should have the further great advantage that there is no absorption of water when the machine is moored, as is the case with wooden hulls. This hull will be finished towards the end of this sum mer, and will then be fitted into the standard F.5 wings with Rolls-Royce " Eagle " engines. THE SUPERMARINE AVIATION WORKS, LTD. THE only firm in Great Britain to have specialised exclusively in the design and construction of flying boat seaplanes, the Supermarine Aviation Works, of Southampton, have pro duced a long series of machines of very varying types, from the small fast single-seater Schneider Cup racer to large twin-engined seagoing machines. Unfortunately, these have all been designed for Government purposes, and it is not possible to do other here than briefly mention the special features of some of them, relying upon the accompanying photographs to give a general idea of the lines of each design. The Supermarine " Channel " type may be said to have been the forerunner of all later Supermarine machines. Fitted at first with a Beardmore engine, and later with a Siddeley " Puma," this machine carried three passengers, and was thus a very economical machine to operate. It had a circular hull, of the " Linton-Hope " type, in which circular frames and straight longitudinal stringers forms the framework to which the boat-built planking is attached. This form of con struction has been retained in all Supermarine machines, and The Short "Springbok" is an all-metal two-seater fighter with 400 h.p. Bristol "Jupiter" engine. 320 _
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